Do the undead wear shoes? And why would they bother? It's not like a careless step onto a rusty nail could lead to lockjaw. Or who cares that the nearest walking corpse may have toenail fungus. Shoes are for the living, or at least until the viewing is over and they nail down the lid on that fancy pine box. Shoes are a rare luxury in Potter's Field, and I'll keep mine for a pillow.
(To ryzst:) --- It's only dark fantasy...The "Horror Rules of Order" became passe long after the "The Big Three" dominated the books, comics, and cinema of the time...It's a different type of gameplay - as well as "Nasties" --- now!